Method of making molded product



Ill

bestos o i 1 h suitaiile limilers. at-e1 proofingagents or theploduction of the said molded product by the treatment of amphibole COMPOSITIONS, CQA UNG QR PLASTIC. Patented May 8, 1928.

Cross Reference LOUIS H.

microns am) FREDERICK roLnEM, or DETROIT, MICHIGAN.

IETHOD OF MAKING MOLDED PRODUCT.

10 Drawing. Original application filed June 26, 1924, filed January 9, 1925.

This invention has reference to molded may be fastened in a great for a number of purposes and act as a substitute for wood fiber. papier materials. and when products which variety of forms mach, sheet or block so fashioned have or be c provided with a. highly glossed finish. the said molded product involving in its manufacture the utilization of an ing liable to chipping or abra will ofier greater resistance against being marked tire resisting qualities, stantially water proof, light in comparison with its bulk, as compared with sheet metal, and lending itself to-its being. coated with materials such as porcelain, dueto its the resisting qualities and the fact that such maburned on the surface there terials may be of without molded product.

The composition utilized liardenin'g'ifgents are manner producing asubstance 't'vliit-lfis not heavy or of or brittle nature. as is the case with aniphibole compositions as heretofore known. or subject to crumbling ordisintegration. or

of a highly absorbent nati' be sized or painted with a water proofroating as in the case of such former amphibole The said molded product-may be produced in the form of automobile parts, panels. doors. casings, furniture, and so on, of a. most durable nature and capable of beingfinished in almost any.

compositions which may be-de'sirable. v The composition ofmatt is secured together with other mater-1a ence of soa" or resm claims appen e the chloride of zinc in the application for Letters Patent, 722.541, filed on the 26th day of 19:24, of which this application is a division.

The object of the said inv v vide a molded product which will not be seriously aliecting the said iere o the terms and resin being interchangeable) whereby fects a partial rial. apableof being amphibole con June,

ention is to pro- S1011 and which metal of equal being aiso 1111- ie effects having being subit is to be put said invention is essentially num sulihate. one part of sea and' ibole material o bi d wl par so s1 ica e of soda. use are thoroughly mixed together with SHillClQIlt to form a a fragile w then placed in sureBVrolhng 4-- and we requiring 1 uare 1n(:h t0

suitable manner er? entering intoninety ;to one Eahrenheit in ls as hereinafter presence of-the pressed shape,

soap unites with the silicate of soda present in the amphibole forming an insoluble compound which reduces the porosity and efwaterproofing of the mate- Together with the amphibole, to give both bulk and density to the produced material. we prefer to use ma nesite and diatomaceous earth. and we a so propose to use 111 the composition such as that described in our pend-ma aluminum ul hate together with Serial the chloride of zinc as 21"5 and also silicate of soda or otassium silicate asWrdenmg mediums.

ese water proofing and hardening materials may beadded to the partlycompleted inding material.

various stages interspersed with drylng or baking of the partly completed composition; or the composition may be considered as completed at any of these stages accordin to the quality of hardness or water proof nature of the material desiredor required by the purposes to which to use.

As an example of amethod of carrying mto eliect, we may provide. so

b y 'wiglit. am hibole fourteen parts; matrl v nesite fourteen parts, and diatornaceous twent-pparts to which is ac er par s. of chloride of zinc. one part of alumi- SEVEN water hea't yd ough from which surplus water 15 afterwards filtered. The residue is ls or subiected to pres (m molt orotherwise. This pressure may conveniently be within two hundred fiftv and three hundred pounds to the obtain a suflicient' Compressi-on of the'internal structure of the material to bring the binders and the several ingredients of relatiouwith-one' another, the compressed materialfbeing released after av sufficient lase'of tinre'for the pressure to have taken e ect andthereafter placed in a drying kiln or oven having atemperature of preferably the composition into close hundred and ten degrees which it is thoroughly dried. The dried ,material'is then subjected to abath of stron orsevera' 0 give the material a protective surface film.- and to stiffen it in g solution of in hot its molded or we may next subject it-to a no bath containing a twentv per cent solution treated. the treatment reaction by the chloof calcium chloride for a 'figlflcngtl ride, soap and silicate content of the am of time to permit the calcium chloride to phibole being effective in producing the den- 65 form with the-soap' in the composition an sity characteristic in the presence of presinsoluble compound effectuall Y closing the sure.

surface pores of the material to render it 3. The method set forth in claim 1 charwaterproof and form the stiffening film reacterized in that other ingredients of the ferred to; and after again drvinsr the mamaterial being treated are magnesite and 70 terial it may be place in a urt ier bath ClltIHIQl'QCQOlIS earth in similar dominating comprisin a twcntv per cent solution of values, together with aluminum sulphate and sodium or )otassium silicate which penesilicate in proportional values relatively a eria at e ects the reducing minor with respect to the values of the domiof the same to a hard rock-like structure nating ingredients, to produce the bull; and 7 but without the same fragility which chardensity producing elements of the material acterizes *Stlrll materials as cement and asin advance of the fashioning of the embryo hestos-cement sheets. productand to provide the binding and Any further treatment of resin soap, folhardening characteristic to the ma erial durlowed after drying with a solution of caling the admixture of the ingredients prior cium chloride to form an insoluble com to the fashioning of the embryo product.

-- pound on the surface and in the pores of 4. The method set forth in claim 1 charthe material. may be employed to increase acterized in that the relative proportions of the water proofing thereof to any'desired amphibole, chloride of zinc and soap are extent: and. where the material is intended respectively fourteen parts (by weight). two

to withstand high temperatures, still furparts and one part, the silicate content value ther treatments of silicate of soda or potasof the amphibole being dependent on the simn silicate may be given. value present within the ainphibole. with The material is also of such a nature that other binders and hardening agents introit may be coated with porcelain, which can duced into the material admixture prior to be burned on the surface thereof without the fashioning of the embryo product.

30 seriously effecting the material. 5. The method set forth in claim 1 and It will be obvious that the arrangement wherein the embryo product is subjected to and proportions of the ingredients of this a further treatment with a solution of socomposition may be varied from the essendium or potassium silicate followed by sub- 90 tial features of the said invention, and it is sequent drying at temperatures about F.

therefore desired that the example set forth 6. The method set forth in claim 1 charherein shall be regarded as being merely acterized in that the drying temperatures illustrative and not in a limiting sense, e are not less than 90 and not greater than cent as necessitated by the prior art. 120 F. 100

What we claim is: 7. The method set forth in claim 1 char- 40 1- The method o P dUC Q H molded acterized in that the dried embryo product product of amphibole characteristic which i th bj t d t -b th tai i a 207;, consists in pr pa ins a molda e ma ria solution of calcium chloride to react with \Ylllil] lDClllClti-S amphibole Wltll ltfi SlllCtllt' the 54031 in closing th product. pores at the content as one of the dominating ing ed s surface, and subjecting the treated embryo as of the material. the material being treated product to the drying activity to produce with chloride of zinc in the presence of soap a stiffening film clniracteristic to the surto produce a treatment reaction of the chloface zone of the product. ride. soap and silicate content. and with the 8. The method set forth in claim 1 chartreatment reaction made manifest throughacterized in that the dried embryo product 50 out the mass of the material. fashioning the is further developed by producing a stiffenmaterial into an embryo product underpresing film within the'snrface zone of the prodsure, heating and drying the embryo prodnot by subjecting the dried product to a net. and then subjecting the surface of the bath of 20% solution of calcium chloride dried embryo product to a soap solution to and subsequent drying activity, and a sucdeposit the salts from the surface of the ceeding treatment by abath of 20% solution embryo product to develop the latter in the of sodium or potassium silicate to further direction of the final product form. harden the same.

2. The method set forth in claim 1 char- In testimony whereof we atfix our signaacterized in that the bulk and density of the tures. i embryo product is provided by the use of V magnesite and diatomaceous earth as other LOUIS H. 'HARTUNG.

dominating ingredients of the material being FREDERICK FOLBERT. 

